Hi there.
I feel for you. I went through a similar situation when I first got here with my employer... but I didn't turn to alcohol. Believe it or not - exercise really does help. As naff as that sounds, keeping busy, sharing your woes with friends, and working out really kept me sane. I know a lot of people who drink to excess to forget their problems. Its a slippery slope... I hope you can limit the reliance on the drink and take up other activities which might help. All the best.